Chapter 8, Lesson 4: The Pectoral Girdle and Upper Limb

Flashcards from Chapter 8, Lesson 4 of McGraw Hill Anatomy and Physiology, Ninth Edition, by Kenneth S. Saladin.

Pectoral girdle

Supports the arm, consists of the clavicle (collarbone) and scapula (shoulder blade)

Clavicle

An S-shaped, somewhat flattened bone that is frequently fractured

Scapula

A shovel-like, triangular plate posteriorly overlying ribs 2 through 7

Upper limb

Contains 30 bones in three regions: the brachium (humerus), antebrachium (radius and ulna), and hand (5 metacarpals, 14 phalanges)

Humerus

The arm proper, articulates with the scapula, clavicle, ulna, and radius

Radius

Bone that is part of the antebrachium; has a disc-shaped head for rotation

Ulna

Bone that is part of the antebrachium; has a hook to the humerus

Carpals

Eight bones that form the wrist to allow for flexion, extension, abduction, and adduction in two rows

Metacarpals

Bones of the palm

Phalanges

Bones of the fingers